Removable calk for horseshoe.



`PATENTE) AUG.14, 1906. E. PIBRsoN' & s. -L. DUNLAP.v RBMOVABLB CALK PoRHoRsBsHoEs.

APPLICATION FILED MAR. 19, 1906.

NITED STATES PATENT OFFICE.

EDWARD PIERSON AND SIMON L. DUNLAP, OF INDIANAPOLIS, INDIANA; SAIDPIERSON ASSIGNOR OF FOUR-TENTHS OF HIS RIGHT TO SAID DUN LAI).

Specification of Letters Patent.

Patented Aug. 14, 1906.'

Application led March 19, 1906. Serial No. 306,842.

To cul, w/tom it may concern.-

G.Be it known that we, EDWARD IIERSON and SIMON L. DUNLAP, citizens ofthe United States, residing at Indianapolis, in the county of Marion andState of Indiana, have invented certain new and useful Improvements inRemovable Oalks for Horseshoes, of which the following is aspecification.

This invention relates to an improvement in horseshoe-calks; and the object of the invention is to provide calks that can be easily placed intoor removed from the shoe when the latter is attached to the horses hoof.

The object consists, further, in providing a calk for horseshoes whichis so arranged that when it has become worn to a certain point theclampingmeans will drop out, and thus permit the calk to lose itselffrom the shoe. This last feature is one of the main objects of thisinvention, for the reason that it is more desirable to have a worn calkentirely removed from the shoe than to be continued in service and tointerfere with the movement of the horse.

The accompanying drawings illustrate the invention, in which Figure l isa perspective view of a horseshoe, showing our improved calks inoperating position. Fig. 2 is a longitudinal vertical sectional view ofa calk, showing themanner in which the members comprising said calk aresecured together. Fig. Sis a top or plan view of a calk with the shoeomitted. Fig. 4 is a perspective view of a calk having its sides slopedto an edge to insure a more perfect footing for a horse on slipperypavements during the winter.

In the drawings, l represents the body of the horseshoe, which isprovided withv three elongated downward and inward sloping slots, whichreceivev the upper ends of the calks. The body of the calk comprises thetwo members 4 and 5, which are set together, and the interveningjoining-line is cut ona diagonal plane, as shown. The upper ends of saidmembers are cut on diagonal lines that taper toward each other, randthus form Y a lock or key for the calk when the members 4 and 5 arenested together in operating position. The elongated slots in theshoe-body 1 are formed with tapering ends that correspond with the upperkey ends of the members 4 and 5. In placing the calk into operatingposition the member 4 is first inserted into the elongated slot in theshoe-body, and after said member is seated the member 5 may readily beplaced into position. The members 4 and 5 of the calk are provided witha longitudinal aperture 8, which registers when said mal when they havebecome irregular through wear, and an irregular-worn calk is consideredmore harmful than no calk at all. We have combined in this calk afeature which will permit the calk to free or lose itself from the shoewhen the metal has worn down to the longitudinal aperture 8, thuspermitting the split key 9 to drop out. With the use of this inventionthe life of the horseshoe is greatly prolonged and the condition of thehorses hoofs preserved, for the reason that the shoes are removed onlywhen it becomes necessary to re-dress the animals hoofs. The driverusually carries a number of the calks, so that when one becomes badlyworn another can readily be substituted. In order to prevent any lateralmovement between the members 4 and 5, we slightly channel the abuttingend of the member 4, while the adjacent end of the member 5 is made to tsaid channel. (See Fig. 3.)

Fig. 5 is a perspective view of a calk the sides of which taper to apoint, making it more desirable and efficient during the winter months,when ice and sleet are usually encountered. Otherwise the calk is madesimilar to the one disclosed in Figs. 2 and 3, which has previously beendescribed.

I-Iaving thus fully described our said invention, what we desire tosecure by Letters Patent of the United States isl. In a removable calkfor horseshoes comprising a shoe rovided with slots the sides of whichslant ownwardly and inwardly toward each other, a calk formed of aplurality of members and having its upper portion to register with theslot in the shoe, and locking means for securing the calk-formingmembers together. v

2. In a removable calk for horseshoes com- IOO prising a shoe providedwith slots the sides of l ivo which slant downwardly and inwardly towardeach other, a calk formed of a plurality of members and having its upperportion formed on downwardly and inwardly extending inclined planes toregister and engage with the slot in the shoe, and having their abuttingends cut diagonally of the perpendicular, and locking means passingthrough the calli members to secure them together.

3. ln a removable calk Jfor horseshoes comprising a shoe provided withslots the sides of which slant downwardly and inwardly toward eachother, a calli formed of a plurality of members and having its upperportion formed on downwardly and inwardly inclined planes to registerand engage with the slot in the shoe, the abutting end of one of themembers being channeled and the adjacent end of the other member formedto rit said channeled end, and locking means for securing thecalli-forming members together.

In witness whereof we have hereunto set our hands and seals, atIndianapolis, Indiana, this 29th day of February', A. D. 1906.

EDWARD PIERSON; [L s] SIMON Li DUNLAP; [L. s3]

Witnesses:

F. W; WOERNER, J. A; MiN'rURm

